Zoroastrian Astrology
The seven Persian planet names, the Fravashi, and the seven generations.
The calculation is free and takes about thirty seconds. Reading it takes a free account; there is no card and nothing expires, and the first generation begins free.
Zoroastrian astrology is the reading of the sky through the cosmology of ancient Persia: the seven classical planets carry their Zoroastrian names (Hvarenah, Mah, Tir, Anahid, Wahram, Ohrmazd and Kaywan), and the Fravashi doctrine holds that the spirits of the ancestors watch over their descendants. Historical Zoroastrianism did not have a birth-chart calculator or one fixed horoscope method; it had careful observational astronomy, a calendar of named days, and a cosmology in which lineage matters. Horospire builds a modern framework on that root: the planetary names and the ancestral emphasis are inherited from the tradition, while the mapping of the seven planets onto seven generations of your family is our own interpretive layer.
What we never claim
- That ancient Zoroastrians cast seven-generation birth charts
- That any scripture prescribes this planet-to-generation mapping
- That the reading is scientifically validated or predictive
- That it substitutes for genealogy, therapy, or medical advice
Most sites in this corner of the web blur the line between an ancient source and a modern reading. We would rather draw it, plainly, on the page you are most likely to quote.
Inherited from the tradition, and Horospire's own layer
Inherited from the tradition
- The seven planetary names, from the Bundahishn and the Avesta
- The Fravashi doctrine that ancestors guard their descendants
- The septenary order of the seven visible planets
- The Sun's and the Moon's positions, from public-domain astronomy
Horospire's own layer
- Assigning each of the seven planets to one ancestral generation
- Reading a planet's sign as that generation's inheritance
- The shadow-to-gift interpretations in every reading
- Using the label Zoroastrian astrology for this modern framework
- Mercury to Saturn read from the house's own tables of sign changes by date
The house's one-line readings: its interpretive layer, typed, not a statement about anyone's family.
- Hvarenah Sun, 1st generation 1st generationYourself The Sun is read as identity: the living tip of the line.
- Mah Moon, 2nd generation 2nd generationParents The Moon is read as the home's inner weather.
- Tir Mercury, 3rd generation 3rd generationGrandparents Mercury is read as the family's way of thinking and arguing.
- Anahid Venus, 4th generation 4th generationGreat-grandparents Venus is read as what the line learned to treat as precious.
- Wahram Mars, 5th generation 5th generation2nd great-grandparents Mars is read as how the line met a threat.
- Ohrmazd Jupiter, 6th generation 6th generation3rd great-grandparents Jupiter is read as the worldview handed down as common sense.
- Kaywan Saturn, 7th generation 7th generation4th great-grandparents Saturn is read as the oldest unfinished work of the line.
Each line is the house's one-line reading of the planet's generation: its interpretive layer, typed, not a statement about anyone's family.
Planet photographs: NASA and mission teams (STEREO, Apollo 11, MESSENGER, Mariner 10, Viking, Cassini), shown in grey. NASA does not endorse Horospire.
What the tradition actually holds
Search for this term and you will be told, correctly, that Zoroastrianism has no traditional astrological calculator. We agree. Here is what it does have, and it is more interesting than a lost horoscope method would have been.
Observational astronomy, not a horoscope engine
Ancient Zoroastrian practice was built on watching the sky: tracking the seven visible planets, the fixed stars, and the turn of the year for a calendar in which every day carries the name of a divinity. No surviving Zoroastrian scripture sets out a birth-chart method, and there is no ancient Zoroastrian calculator to recover. That is the honest starting point, and every page here is written from it.
The Bundahishn planetary names
The Middle Persian planetary names Horospire uses are real and recorded: Mah for the Moon, Tir for Mercury, Anahid for Venus, Wahram for Mars, Ohrmazd for Jupiter, Kaywan for Saturn, with Hvarenah the Avestan word for divine glory standing for the Sun. They are preserved chiefly in the Bundahishn, the 9th-century Zoroastrian cosmological text.
The Fravashi, the ancestral guardian spirits
Yasht 13 of the Avesta, the Farvardin Yasht, is dedicated entirely to the Fravashi: pre-existing souls who guard the living, the honoured dead, and the yet to be born. This is the genuinely ancestral heart of Zoroastrian belief, and it is why a Zoroastrian frame maps so naturally onto lineage.
Biruni recorded the correspondences
Around 1000 CE, al-Biruni documented the Zoroastrian planetary correspondences and calendar in The Chronology of Ancient Nations, an independent scholarly record of a system already ancient in his time. It is one of the best public-domain sources for how these names and associations were understood.
Why a Zoroastrian frame is an ancestral one
The reason this tradition, rather than any other, sits under a seven-generation reading is the Fravashi. In Zoroastrian belief the Fravashi are guardian spirits: pre-existing souls who chose to enter the world, who protect the living, and who bind every person to the ancestors behind them and the descendants ahead. The Farvardin Yasht (Yasht 13 of the Avesta) is devoted entirely to them.
That is a cosmology in which no one is only themselves. It is a short step, though it is a step we take and the ancients did not, from "your ancestors are present in your life" to "read the seven planets as seven generations". The Fravashi doctrine is the root; the seven-generation chart, which the house calls ancestral astrology, is the modern branch. The full method, its sources, and the epigenetic research we treat as its honest parallel are on the method and sources page.
Zoroastrian astrology and Persian astrology
The two terms are often used as if they were one. They are not. Persian astrology is the broad practice of astrology in Persia across many centuries: largely Hellenistic and Babylonian in technique, refined under the Sasanians, and carried into the medieval Islamic world by astrologers such as Masha'allah and Abu Ma'shar. It is a technical tradition of charts, lots, and mundane prediction.
Zoroastrian astrology, as Horospire uses the term, is the narrower religious layer inside that world: the planetary names of the Bundahishn and the ancestral cosmology of the Fravashi. It contributes a vocabulary and a worldview rather than a technique. The technique in a Horospire reading is the house's own (public-domain astronomy for the Sun and the Moon, the house's tables for the other five), and only the lens is Zoroastrian. The Persian astrology calculator casts that reading from a birth date.
How a Zoroastrian reading works in practice
- The birth date, and optionally the time and place, fix the Sun and the Moon from public-domain astronomy; Mercury to Saturn are read from the house's tables of sign changes by date.
- Each planet is named for its Zoroastrian divinity and assigned to one generation of the line.
- The sign each planet occupied is read through the generation it stands for: a theme, a strength, and a shadow to reflect on. That reading is the house's interpretive layer.
Written by Horospire as fixed text, the same for every reader. See how the reading is computed.
Frequently asked questions
What is Zoroastrian astrology?
Zoroastrian astrology reads the sky through the cosmology of ancient Persia. The seven classical planets carry their Zoroastrian names (Hvarenah, Mah, Tir, Anahid, Wahram, Ohrmazd and Kaywan), and the Fravashi doctrine, in which the spirits of the ancestors guard their descendants, supplies the ancestral frame. As Horospire practises it, each of those seven planets is read as the signature of one generation of your family line, from you back to your great-great-great-great-grandparents.
Does Zoroastrianism believe in astrology?
Historical Zoroastrianism did not have a birth-chart calculator or one fixed horoscope method; it had careful observational astronomy, a calendar of named days, and a cosmology in which lineage matters. The planetary names recorded in the Bundahishn and the Fravashi doctrine are what Horospire's modern seven-generation reading builds on.
Did ancient Zoroastrians use an astrological calculator?
No, and it is worth saying so plainly. Zoroastrian practice was built on observational astronomy and a calendar of named days, not on a birth-chart engine, and no surviving Zoroastrian scripture sets out a horoscope method. What the tradition genuinely gives us is the planetary names recorded in the Bundahishn and the Fravashi doctrine of ancestral guardian spirits. The seven-generation calculator is a modern tool built on that root, not an ancient one recovered from it.
What are the Zoroastrian names of the seven planets?
Hvarenah is the Sun (the Avestan word for divine glory), Mah is the Moon, Tir is Mercury, Anahid is Venus (from Anahita, divinity of the pure waters), Wahram is Mars (from Verethragna, divinity of victory), Ohrmazd is Jupiter (from Ahura Mazda, the wise lord), and Kaywan is Saturn. These are the Middle Persian planetary names preserved chiefly in the Bundahishn.
Is Zoroastrian astrology the same as Persian astrology?
They overlap but they are not identical. Persian astrology usually means the astrology practised in Persia across many centuries, much of it inherited from Hellenistic and Babylonian technique and later carried into the medieval Islamic tradition by astrologers such as Masha'allah and Abu Ma'shar. Zoroastrian astrology, as Horospire uses the term, is narrower: it takes the specifically Zoroastrian layer, the planetary names and the ancestral Fravashi cosmology, and reads a chart as a lineage rather than a single life.
What is a Fravashi?
In Zoroastrian belief a Fravashi is a guardian spirit: a pre-existing soul that chose to enter the world, protects the living, and links a person to the ancestors who came before. The Farvardin Yasht (Yasht 13 of the Avesta) is devoted to them. Because the Fravashi bind each person to their line, they are the philosophical reason a Zoroastrian frame reads a birth chart as an inheritance rather than an isolated self.
Is Zoroastrian astrology scientifically proven?
No. Astrology is a symbolic, reflective tool, not an empirically validated science, and the seven-generation mapping is Horospire's interpretive framework rather than a proven mechanism. The honest parallel is transgenerational epigenetics, where studies such as the Overkalix cohort, the Dutch Hunger Winter, and Rachel Yehuda's work on trauma descendants show that ancestral experience can leave measurable biological marks. Read the astrology as a prompt for reflection and the science as the grounded parallel, never as validation.
How do I get a Zoroastrian astrology reading?
Enter your birth date on the free Zoroastrian astrology calculator. Horospire computes the Sun and the Moon with public-domain astronomical algorithms and reads Mercury to Saturn from its own tables of sign changes, then reads each planet through its generation, giving you a theme, a strength, and a shadow for every generation in your line. The calculation is free. Reading it takes a free account; there is no card and nothing expires.